vision but then over time because of the investments they made, the ridership has increased which then begs for more investments at different speeds. how was that factored into your analysis about whether there is an efficiency in investing? >> we are still assessing the california process for developing writer ship -- ridership and revenue forecast. the inspector general has put in i skied out there. -- nice guide out there. it is an extremely complex undertaking. that being said, it is critical in determining the viability of our products. the key to this is you have to continually we find the estimate at the project scope, as things change. update the model and make sure you have the state of the art, if you will. that is the process california is undertaking as well. >> thank you. meat turned to mr. edward hamberger/ i at express concern -- let me turn to edward hamberger. i wonder if the freight industry has done some assessment about what that means in terms of its own productivity, competitiveness. i hear the concern the secretary expressed that we have a great freight system. it is